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De-Laval turbine is a

A. Simple impulse turbine

B. Simple reaction turbine

C. Impulse-reaction turbine

D. None of these

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. The fire tubes in a Cochran boiler usually have _________ diameter.
  2. Hard coke is used in
  3. The stage efficiency (ηS) is given by (where ηB = Blading efficiency, and ηN = Nozzle…
  4. The function of a piston rod is
  5. The behaviour of coal in a furnace is determined by
  6. In a boiler, the heat is lost
  7. The maximum discharge through a chimney occurs when the height of chimney is
  8. The rate of discharge through the nozzle __________ when the exit pressure is gradually reduced.
  9. Which of the following statement is wrong?
  10. The critical pressure ratio for initially wet steam is
  11. The flow of steam is supersonic
  12. The artificial draught is produced by
  13. The relative efficiency is defined as the
  14. The ratio of the useful heat drop to the isentropic heat drop is called
  15. An economiser _________ the steam raising capacity of a boiler.
  16. Expansion ratio is the ratio of
  17. A double acting steam engine with a cylinder diameter of 190 mm and a stroke of 300 mm has a cut-off…
  18. For the same length of stroke and speed of crankshaft, the piston speed for a double acting steam engine…
  19. Secondary air is the air used to
  20. The action of steam in a steam turbine is
  21. The average operating pressure of Benson boiler is
  22. When the total heat of steam is h kJ/kg and the sensible heat of feed water is hf1 kJ/kg, then the factor…
  23. A nozzle is said to be a divergent nozzle
  24. The diameter of fire tube of Cornish boiler compared to its shell is
  25. For burning 1 kg of carbon to CO as per chemically correct combustion, amount of air required is
  26. Curtis turbine is a
  27. A boiler in India should conform to safety regulations of
  28. The amount of water evaporated in kg per kg of fuel burnt is called
  29. The high steam and low water safety valve is used to blow off steam when the
  30. The diameter of cylindrical shell of the Lancashire boiler is of the order of